The Butterfly Effect

All of the prison scenes were filmed in a real prison (Washington State) with real prisoners.

(at around 42 mins, director's cut only) When Evan comforts his mother outside of the psychic's building, she confesses that she had two stillbirths before Evan was born and she refers to Evan as her miracle baby. When Evan is strangling himself in his mother's womb (at around 1h 50 mins), she can be heard to say that she had three stillbirths before he was born and she again refers to him as her miracle baby. This is not a flashback, but rather a deliberate change explained by Eric Bress and J. Mackye Gruber. It is implied that the two previous miscarriages before Evan went through the same journey and that Andrea is saying this to her new (future) child - a girl, who has broken the family "curse".

The title, "The Butterfly Effect," is superimposed over a depiction of a butterfly beating its wings, which is itself superimposed upon an X-ray profile of a human brain.

The director's cut contains a few new scenes:

• Evan discovering that his grandfather had the same gift, and also was considered crazy, like his father
• Evan and Andrea go to a palm reader that tells Evan he has no lifeline
• Andrea telling Evan she was pregnant twice before he was born.
• A scene in the prison where the prisoners publicly read Evan's journals.
• A scene in the prison where the other prisoners come to rape Evan one night.
• An extended hospital scene where Evan is visiting sick Andrea.
• An alternate ending.